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App.js
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import { StatusBar } from 'expo-status-bar';
import React, { useState } from 'react';
import { SafeAreaView, StyleSheet, Text, View, Button, TouchableOpacity } from 'react-native';
export default class App extends React.Component {
render() {
return (
<SafeAreaView style={styles.container}>
<View style={styles.calculation}>
<Text style={styles.calculationText}></Text>
</View>
<View style={styles.result}>
<Text style={styles.resultText}></Text>
</View>
<View style={styles.buttons}>
<View style={styles.numbers}>
<View style={styles.row}>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>7</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>8</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>9</Text>
</TouchableOpacity>
</View>
<View style={styles.row}>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>4</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>5</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>6</Text>
</TouchableOpacity>
</View>
<View style={styles.row}>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>1</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>2</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>3</Text>
</TouchableOpacity>
</View>
<View style={styles.row}>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>.</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>0</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>=</Text>
</TouchableOpacity>
</View>
</View>
<View style={styles.operations}>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>+</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>-</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>*</Text>
</TouchableOpacity>
<TouchableOpacity style={styles.opacButton}>
<Text style={styles.buttonText}>/</Text>
</TouchableOpacity>
</View>
</View>
</SafeAreaView>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1,
},
calculation: {
flex: 2,
backgroundColor: 'red',
justifyContent: 'flex-end',
alignItems: 'flex-end'
},
result:{
flex: 1,
backgroundColor: 'yellow',
justifyContent: 'flex-end',
alignItems: 'flex-end'
},
buttons:{
flex: 5,
flexDirection: 'row',
},
numbers:{
flex: 3,
backgroundColor: 'green',
},
operations:{
flex:1,
backgroundColor: 'orange',
justifyContent: 'space-around'
},
row:{
flex: 1,
flexDirection: 'row',
justifyContent: 'space-around',
alignItems: 'center'
},
opacButton: {
flex: 1,
justifyContent: 'center',
alignItems: 'center'
},
buttonText: {
fontSize: 30
},
resultText: {
fontSize: 30,
},
calculationText: {
fontSize: 30,
}
});